Fire pump housing machining device

Abstract

The application discloses a fire pump shell machining device and belongs to the technical field of shell machining. The fire pump shell machining device comprises a cabinet and a plurality of electric drilling machines arranged on the upper side of the cabinet, and further comprises a positioning and clamping mechanism, a drilling adjusting mechanism and a driving mechanism. The positioning and clamping mechanism comprises a protective shell and a positioning and clamping assembly arranged in the protective shell. The drilling adjusting mechanism comprises a top plate and a drilling adjusting assembly arranged on the lower side of the top plate. The driving mechanism comprises a shell and a driving assembly arranged in the shell. The single driving source is parallelly mechanically transmitted to synchronously control the multi-drill spacing adjustment and the multi-direction clamping action. The production efficiency and the automation level are remarkably improved while the high machining precision is ensured. The integrated follow-up material receiving shell and the multi-layer annular flow guide and chip removal system realize the whole-process dynamic collection and the closed external discharge of machining waste chips, and the long-term operation stability and the maintenance convenience of the equipment are improved.

Description

Technical Field

[0001] This invention relates to the field of shell processing technology, and in particular to a fire pump shell processing device. Background Technology

[0002] A water pump is a pumping machine that utilizes the centrifugal motion of water. It consists of a pump casing, impeller, pump shaft, and electric motor. The impeller is installed inside the impeller cavity of the pump casing. The electric motor drives the impeller to rotate, simultaneously causing the water inside the pump casing to rotate at high speed, resulting in centrifugal motion. In the drilling process of fire pump casings, efficient and precise positioning and simultaneous multi-hole drilling are key to improving production efficiency.

[0003] In existing technologies, such as the pump housing drilling fixture disclosed in patent CN119140867A, the clamping of the pump housing and the adjustment of the drill bit distance are achieved by a servo motor driven by a hole spacing adjustment component, a first positioning component, and a second limiting component. However, this solution has obvious limitations: First, its clamping (outer clamping and inner support) and drill bit distance adjustment functions are coupled through the same rigid transmission system, and the action sequence and stroke are fixed. This makes it difficult to adapt to pump housings of different sizes. When the workpiece size changes, the clamping component and the distance adjustment component are prone to failure to coordinate in place: either the clamping is completed but the drill bit is not in place, or the clamping is not stable after the drill bit is in place, affecting the processing accuracy and reliability. Second, in its first positioning component, the slide plate used to drive the outer clamping block moves in the groove at the top of the mounting frame. Metal chips generated during processing are very easy to fall into the groove, which is difficult to clean. Long-term accumulation will lead to mechanism jamming, accelerated wear, and poor maintainability. Summary of the Invention

[0004] The purpose of this invention is to solve the problems existing in the prior art by proposing a fire pump casing processing device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A fire pump casing processing device includes a cabinet and several electric drilling rigs mounted on the upper side of the cabinet, and further includes: A positioning and clamping mechanism, comprising a protective shell disposed on the upper side of the cabinet and a positioning and clamping assembly disposed within the protective shell, for clamping the positioning pump housing body; A drilling adjustment mechanism, comprising a top plate mounted on the upper side of the cabinet via a support rod and a drilling adjustment assembly mounted on the lower side of the top plate, for adjusting the drilling spacing of several electric drills; The drive mechanism includes a housing disposed on the top of the cabinet and a drive assembly disposed within the housing, for driving the positioning clamping assembly and the drilling adjustment assembly to work synchronously. The outer shell is provided with a locking component for locking the position of the positioning clamping component, and the protective shell is provided with a closed waste chip guiding system that cooperates with the positioning clamping component to dynamically receive the waste chips generated by the electric drill during drilling.

[0006] Preferably, the positioning and clamping assembly includes a plurality of bidirectional screws that are uniformly rotatable in a circumferential manner within the protective shell. Each bidirectional screw is threadedly connected to a first sleeve and a second sleeve. Both the first sleeve and the second sleeve are provided with elastic telescopic tubes. Each end of the elastic telescopic tube is provided with a movable plate. The top of the movable plate is provided with a clamping plate, and the clamping plate is provided with a wear-resistant rubber pad. The protective shell is provided with an outer movable groove and an inner movable groove that cooperate with the clamping plate.

[0007] Preferably, each of the bidirectional screws is provided with an external thread that is threaded to the first sleeve and the second sleeve, and the pitch of each external thread gradually decreases, so that the first sleeve and the second sleeve on the same bidirectional screw can move relative to each other.

[0008] Preferably, the closed waste diversion system includes a first receiving shell and a second receiving shell. The first receiving shell is connected to a movable plate corresponding to the first sleeve and is used to close the outer movable groove. The second receiving shell is connected to a movable plate corresponding to the second sleeve and is used to close the inner movable groove. The inner walls of the first receiving shell and the second receiving shell are configured as an inverted V-shaped cavity with a high middle and low sides. The first receiving shell and the second receiving shell are slidably connected. The inner wall height of the second receiving shell is lower than that of the inner wall height of the first receiving shell. The first receiving shell has a first discharge port at one end inside the second receiving shell.

[0009] Preferably, the inner wall of the protective shell is fixedly provided with a first annular shell, a second annular shell and a third annular shell, the inner walls of the first annular shell, the second annular shell and the third annular shell are all inclined, and the first annular shell, the second annular shell and the third annular shell are all provided with a material guiding channel that communicates with the outside of the protective shell. The end of the first receiving shell away from the first discharge port is slidably connected to the first annular shell, and the first receiving shell has a second discharge port at one end inside the first annular shell; The first receiving shell and the second receiving shell are both slidably connected to the second annular shell, and the second receiving shell has a third discharge port at one end inside the second annular shell; The end of the second receiving shell away from the third discharge port is slidably connected to the third annular shell, and the second receiving shell has a fourth discharge port at one end inside the third annular shell.

[0010] Preferably, the drilling adjustment assembly includes a dust cover fixed to the top plate, a rotating ring placed inside the dust cover and rotatably connected to the top plate, a bevel gear ring fixedly connected to the rotating ring, a plurality of adjusting screws rotatably connected to the dust cover in a circular pattern, a secondary bevel gear disposed on the adjusting screws and meshing with the bevel gear ring, a third sleeve threadedly connected to the adjusting screws, and an electric telescopic rod disposed on the third sleeve. The electric drilling rig is connected to the end of the electric telescopic rod away from the third sleeve.

[0011] Preferably, the drive assembly includes a drive motor rotatably disposed within the housing, a drive rod connected to the output shaft of the drive motor, a drive gear disposed on the drive rod, and a gear ring disposed on the rotating ring and meshing with the drive gear.

[0012] Preferably, the drive assembly further includes a rotating rod rotatably mounted on the housing, a driving bevel gear on the rotating rod, a driven bevel gear meshing with the driving bevel gear on the bidirectional screw, a synchronous pulley on both the rotating rod and the drive rod, and a synchronous belt between the two synchronous pulleys.

[0013] Preferably, the locking assembly includes a first pneumatic telescopic rod fixed to the top of the housing, an annular plate disposed on the top of the first pneumatic telescopic rod, a plurality of mounting plates evenly distributed on the annular plate in a circular pattern, and a plurality of elastic telescopic inserts disposed on the mounting plates, wherein the movable plate is provided with a plurality of insertion holes that cooperate with the elastic telescopic inserts. Preferably, the locking assembly further includes a second pneumatic telescopic rod connected to the side wall of the electric telescopic rod, the telescopic end of the second pneumatic telescopic rod is provided with a force-bearing plate that moves against the outer wall of the pump housing body, and an air guide pipe is provided between the second pneumatic telescopic rod and the first pneumatic telescopic rod.

[0014] Compared with the prior art, the present invention provides a fire pump housing processing device, which has the following beneficial effects: 1. In this invention, a bidirectional screw with a tapered external thread drives the positioning and clamping assembly, which automatically switches to a low-speed, high-torque flexible clamping state after contacting the pump housing. This state can adapt to different wall thicknesses. At the same time, a compressible second pneumatic telescopic rod senses the radial positioning signal of the drill bit and triggers the mechanical locking of the clamping mechanism. This effectively solves the problem that traditional rigid linkage schemes have difficulty coordinating clamping and spacing adjustments when processing workpieces of different sizes, thus ensuring the stability of the processing reference in principle.

[0015] 2. In this invention, by integrating the first and second receiving shells that move along the moving clamping plate, and combining them with the fixedly installed multi-layer inclined annular shell and the guiding channel, a dynamic and closed waste chip guiding and collection system is constructed. This system can automatically capture and guide the waste chips generated during drilling to be directly discharged outside the equipment, completely isolating them from the core transmission components such as screws and gears inside the protective shell. This fundamentally avoids jamming, wear, and decreased precision caused by waste chip accumulation, greatly reducing the frequency and difficulty of maintenance, and improving the durability and convenience of equipment maintenance.

[0016] 3. In this invention, all bidirectional screws (controlling clamping) and all adjusting screws (controlling drill bit spacing) are driven synchronously by mechanical transmission. After the drill bit is confirmed to be in place by pneumatic feedback, the system can automatically trigger and complete the mechanical locking of the clamping sleeve. The entire process of placing the workpiece, starting, and automatically completing the positioning and locking is highly integrated and automated, eliminating the cumbersome steps of adjusting and locking separately in traditional processing, greatly shortening the preparation time and improving production efficiency.

[0017] 4. In this invention, multiple bidirectional screws and their clamping units are evenly arranged around the circumference, ensuring that the pump casing is subjected to uniform radial clamping force in the circumferential direction, avoiding deformation or vibration caused by unilateral force. At the same time, all adjusting screws are synchronously driven by the same bevel gear ring, ensuring that all drill bits can move radially to the same processing circumference accurately and synchronously. This symmetrical and synchronous force and motion control provides a stable process foundation for multi-axis simultaneous drilling, effectively ensuring the coaxiality and positional accuracy of multiple holes, and improving the consistency of product quality. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the drilling adjustment mechanism of the present invention; Figure 4 This is a schematic diagram of a portion of the internal structure of the dustproof housing of the present invention; Figure 5 This is a schematic diagram of the positioning and clamping mechanism of the present invention; Figure 6 This is a cross-sectional structural diagram of the protective shell of the present invention; Figure 7 for Figure 6 Enlarged structural diagram of section A in the middle; Figure 8 This is a schematic diagram of the structure of the three annular shells of the present invention; Figure 9This is a schematic diagram of the structure of the first annular shell of the present invention; Figure 10 This is a schematic diagram of the structure of the first receiving shell and the second receiving shell of the present invention; Figure 11 This is a partial structural schematic diagram of the locking component of the present invention.

[0019] In the diagram: 1. Cabinet; 2. Electric drilling rig; 3. Protective shell; 301. Outer movable groove; 302. Inner movable groove; 4. Top plate; 5. Outer shell; 6. Bidirectional screw; 601. First sleeve; 602. Second sleeve; 603. Elastic telescopic tube; 604. Moving plate; 605. Clamping plate; 606. External thread; 607. Driven bevel gear; 7. First receiving shell; 701. First discharge port; 702. Second discharge port; 8. Second receiving shell; 801. Third discharge port; 802. Fourth discharge port; 9. First annular shell; 10. Second annular shell; 11. Third annular shell; 12. Guide channel; 13. Protective shell. Dust casing; 131. Rotating ring; 132. Bevel gear ring; 133. Adjusting screw; 134. Secondary bevel gear; 135. Third sleeve; 136. Electric telescopic rod; 14. Drive motor; 141. Drive rod; 142. Drive gear; 143. Gear ring; 15. Rotating rod; 151. Driving bevel gear; 16. Synchronous pulley; 17. First pneumatic telescopic rod; 171. Annular plate; 172. Mounting plate; 173. Elastic telescopic insert rod; 18. Insertion hole; 19. Second pneumatic telescopic rod; 191. Sleeve; 192. Piston; 193. Elastic element; 194. Movable rod; 20. Force plate; 21. Air guide pipe. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0021] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0022] like Figures 1 to 3As shown, this embodiment proposes a fire pump housing processing device, including a cabinet 1 and several electric drills 2 disposed on the upper side of the cabinet 1, and further including: a positioning and clamping mechanism, a drilling adjustment mechanism, and a driving mechanism; the positioning and clamping mechanism includes a protective shell 3 disposed on the upper side of the cabinet 1 and a positioning and clamping component disposed within the protective shell 3, for clamping and positioning the pump housing body; the drilling adjustment mechanism includes a top plate 4 disposed on the upper side of the cabinet 1 via a support rod and a drilling adjustment component disposed on the lower side of the top plate 4, for adjusting the drilling spacing of the several electric drills 2; the driving mechanism includes a housing 5 disposed on the top of the cabinet 1 and a driving component disposed within the housing 5, for driving the positioning and clamping component and the drilling adjustment component to work synchronously; wherein, the housing 5 is provided with a locking component for locking the position of the positioning and clamping component; Specifically, the operator places the fire pump casing to be processed on the cabinet 1, surrounding it with the clamping components inside the protective shell 3 of the positioning and clamping mechanism. The operator then starts the drive mechanism, which simultaneously outputs power to the positioning and clamping mechanism and the drilling adjustment mechanism. On one hand, the power drives the positioning and clamping components to clamp and position the pump casing from both the inside and outside. On the other hand, the power synchronously drives the drilling adjustment components, causing all the electric drills 2 to move relative to the top plate 4, automatically adjusting to a drilling circumference diameter that matches the current pump casing. Once the positioning and clamping components firmly clamp the pump casing... Then, the locking component set on the outer shell 5 will be automatically triggered and activated. The locking component will act on the positioning clamping component, so that its position is mechanically fixed and cannot be retracted or loosened due to external force or vibration during subsequent processing, thereby ensuring the absolute stability of the processing reference. After the clamping, positioning and locking are completed, the electric drills 2 are controlled to start and feed downward, and drilling is performed on the positioned pump shell at the same time. After the drilling is completed, the electric drills 2 retract, the drive mechanism reverses, the locking component is released, and then the positioning clamping component is driven to release the pump shell. At the same time, the drilling adjustment component drives the drill bit to reset. Finally, the processed pump shell is removed. By using a single drive mechanism to synchronously control the positioning and clamping functions and the drilling spacing adjustment, the positioning and tool setting processes can be completed automatically and in a coordinated manner, significantly simplifying the operation process. Operators only need to place the workpiece and start the machine, and the machine can automatically complete the pre-processing preparations, greatly improving work efficiency and reducing errors that may be caused by manual step-by-step adjustments. Furthermore, the machine can quickly adapt to the drilling needs of fire pump housings of different specifications, enhancing the flexibility of the production line.

[0023] like Figure 1 , Figure 5 , Figure 6 and Figure 7As shown, in a preferred embodiment, based on the above method, the positioning and clamping assembly further includes a plurality of bidirectional screws 6 arranged in a circumferentially uniformly rotating manner within the protective shell 3. Each bidirectional screw 6 is threadedly connected to a first sleeve 601 and a second sleeve 602. Both the first sleeve 601 and the second sleeve 602 are provided with elastic telescopic tubes 603. Each end of the elastic telescopic tube 603 is provided with a movable plate 604. The top of the movable plate 604 is provided with a clamping plate 605. The clamping plate 605 is provided with a wear-resistant rubber pad. The protective shell 3 is provided with an outer movable groove 301 and an inner movable groove 302 that cooperate with the clamping plate 605; Furthermore, each bidirectional screw 6 is provided with an external thread 606 that is threadedly connected to the first sleeve 601 and the second sleeve 602. The pitch of each external thread 606 gradually decreases, and the first sleeve 601 and the second sleeve 602 on the same bidirectional screw 6 move relative to each other. Specifically, before placing the pump housing body, all bidirectional screws 6 are in an initial position and are driven to rotate by the drive assembly, causing the first sleeve 601 and the second sleeve 602 on each screw to move away from each other. After the pump housing body is placed at the designated position above the protective shell 3, the drive assembly starts to drive all bidirectional screws 6 to rotate synchronously. Due to the screw direction and pitch design, the first sleeve 601 and the second sleeve 602 begin to move relative to each other along the screw axis. The opposing movement of the sleeves pushes the elastic telescopic tubes 603 connected to them to move. The elastic telescopic tubes 603 push the moving plate 604, which in turn drives the clamping plate 605 on it to slide along the inner movable groove 302 and the outer movable groove 301 on the protective shell 3, respectively. When the clamping plates 605 on the inner and outer sides contact the pump... When the pump casing is being processed, the clamping action does not stop immediately. Under the action of the special thread with gradually decreasing pitch, the bidirectional screw 6 continues to rotate. However, the axial movement speed of the sleeve will automatically slow down as the pitch decreases, avoiding the risk of pump casing deformation, indentation, or overload that may be caused by rigid clamping. At this time, the rotational force of the thread is converted into more of the axial thrust to overcome the resistance of the sleeve movement. The elastic telescopic tube 603 is compressed. This compression process allows the clamping plate 605 to continuously and flexibly apply pressure to the inner and outer walls of the pump casing until it is stopped by the drive mechanism. After processing, the drive assembly drives the bidirectional screw 6 to rotate in the opposite direction. The first sleeve 601 and the second sleeve 602 move in opposite directions and are reset through the elastic telescopic tube 603, pulling the clamping plate 605 back along the movable groove and releasing the pump casing.

[0024] like Figure 5 , Figure 6 , Figure 7 , Figure 8 , Figure 9 and Figure 10As shown, in a preferred embodiment, based on the above method, each first sleeve 601 is further provided with a first receiving shell 7 for closing the outer movable groove 301 on the moving plate 604, and each second sleeve 602 is provided with a second receiving shell 8 for closing the inner movable groove 302 on the moving plate 604. The inner walls of the first receiving shell 7 and the second receiving shell 8 are configured as an inverted V-shaped cavity with a high middle and low sides. The first receiving shell 7 and the second receiving shell 8 are slidably connected. The inner wall height of the second receiving shell 8 is lower than that of the inner wall height of the first receiving shell 7. The first receiving shell 7 has a first discharge port 701 at one end inside the second receiving shell 8. Furthermore, the inner wall of the protective shell 3 is fixed with a first annular shell 9, a second annular shell 10 and a third annular shell 11. The inner walls of the first annular shell 9, the second annular shell 10 and the third annular shell 11 are all inclined, and the first annular shell 9, the second annular shell 10 and the third annular shell 11 are all provided with a material guiding channel 12 that communicates with the outside of the protective shell 3. The first receiving shell 7 is slidably connected to the first annular shell 9 at one end away from the first discharge port 701, and the first receiving shell 7 has a second discharge port 702 at one end inside the first annular shell 9. The first receiving shell 7 and the second receiving shell 8 are both slidably connected to the second annular shell 10. The second receiving shell 8 has a third discharge port 801 at one end inside the second annular shell 10. The end of the second receiving shell 8 away from the third discharge port 801 is slidably connected to the third annular shell 11, and the second receiving shell 8 has a fourth discharge port 802 inside the third annular shell 11. Specifically, some of the debris generated during drilling falls into the outer movable groove 301 and inner movable groove 302 areas on the surface of the protective shell 3. However, since the first receiving shell 7 and the second receiving shell 8 are connected below the moving clamping plate 605, these receiving shells always move with the clamping plate 605 and are actually located below the movable grooves, thus receiving the falling debris. After the debris falls into the inverted V-shaped inner wall of the receiving shell, it will naturally slide to the lower sides due to gravity. The debris falling into the first receiving shell 7 can slide along its inner wall and be discharged through the first discharge port 701 at one end or the second discharge port 702 at the other end. According to the connection relationship, the debris discharged from the second discharge port 702 will enter the first annular shell 9. Since the inner wall of the second receiving shell 8 is lower, it can receive the debris that slides in from the first discharge port 701 of the first receiving shell 7. At the same time, it collects its own debris. Waste chips can slide along the inner wall to both ends, entering the second annular shell 10 through the third discharge port 801, or the third annular shell 11 through the fourth discharge port 802. Waste chips from the multiple circumferentially distributed first receiving shells 7 and second receiving shells 8, entering the first annular shell 9, second annular shell 10, and third annular shell 11, will continue to slide along the inclined inner walls of these fixed annular shells. Finally, all the waste chips collected in the annular shells will be transported and discharged to the outside of the protective shell 3 through their respective corresponding guide channels 12, completing the fully enclosed transfer of waste chips. This avoids the possibility of waste chips spilling into the interior of the protective shell 3 during the transfer process, fundamentally protecting the internal precision transmission components such as the bidirectional screw 6, threaded pairs, and gears from wear, jamming, or loss of precision caused by the intrusion of iron chips. At the same time, it avoids the problem of waste chips being difficult to clean due to the concavity of the pump shell support surface.

[0025] like Figure 2 , Figure 3 , Figure 4 and Figure 6 As shown, in a preferred embodiment, based on the above method, the drilling adjustment assembly further includes a dustproof shell 13 fixed on the top plate 4, a rotating ring 131 placed inside the dustproof shell 13 and rotatably connected to the top plate 4, a bevel ring 132 fixedly connected to the rotating ring 131, a plurality of adjusting screws 133 rotatably connected to the dustproof shell 13 in a circular manner, a secondary bevel gear 134 disposed on the adjusting screws 133 and meshing with the bevel ring 132, a third sleeve 135 threadedly connected to the adjusting screws 133, and an electric telescopic rod 136 disposed on the third sleeve 135. The electric drill 2 is connected to the end of the electric telescopic rod 136 away from the third sleeve 135. Furthermore, the drive assembly includes a drive motor 14 rotatably disposed within the housing 5, a drive rod 141 connected to the output shaft of the drive motor 14, a drive gear 142 disposed on the drive rod 141, and a gear ring 143 disposed on the rotating ring 131 and meshing with the drive gear 142. The drive assembly also includes a rotating rod 15 rotatably mounted on the housing 5, a driving bevel gear 151 mounted on the rotating rod 15, a driven bevel gear 607 meshing with the driving bevel gear 151 mounted on the bidirectional screw 6, a synchronous pulley 16 mounted on both the rotating rod 15 and the drive rod 141, and a synchronous belt mounted between the two synchronous pulleys 16. Specifically, starting the drive motor 14 causes the output shaft of the drive motor 14 to rotate the drive rod 141. The rotation of the drive rod 141 directly drives the drive gear 142 on it to rotate. The drive gear 142 meshes with the gear ring 143 on the rotating ring 131, driving the entire rotating ring 131 to rotate within the dustproof housing 13. The rotating ring 131 drives the bevel gear ring 132 fixed to it to rotate together. When the bevel gear ring 132 rotates, it meshes with the secondary bevel gears 134 at the ends of all adjusting screws 133, driving all adjusting screws 133 to rotate synchronously. The rotation of each adjusting screw 133 drives the rotation of the gear ring 132. The threaded third sleeve 135 moves axially along the screw. Since all adjusting screws 133 rotate synchronously, all third sleeves 135 move synchronously, at the same speed, and in the same direction. This drives the connected electric telescopic rod 136 and the electric drill 2 to move towards the center or outwards, achieving synchronous adjustment of the drilling spacing of all drill bits. This ensures that the radial displacement of all third sleeves 135 is exactly the same, fundamentally guaranteeing that multiple electric drills 2 can always be precisely arranged on the same circumference with uniform and symmetrical spacing. Simultaneously, when the drive rod 141 rotates, the movement of the third sleeve 135, along with the rotating rod, is controlled by the electric telescopic rod 136 connected to it. The synchronous pulley 16 on the drive rod 15 and the synchronous belt connecting them transmit power to the rotating rod 15, causing it to rotate synchronously with the drive rod 141. The rotating rod 15 drives the driving bevel gear 151 on it to rotate. The driving bevel gear 151 drives all the bidirectional screws 6 to rotate synchronously by meshing with the driven bevel gear 607 on each bidirectional screw 6, thereby performing the clamping or loosening action of the positioning clamping assembly. It should be noted that by setting the threads of the bidirectional screws 6 and the adjusting screw 133, the clamping plate 605 can engage with the drilling rig before it moves to the drilling position each time a clamping action is performed. The pump casing wall abuts; since the driving drilling adjustment and driving positioning clamping have the same power source and achieve rotational synchronization through a synchronous belt, the actions of the two mechanisms start, proceed, and stop simultaneously, achieving strict mechanical synchronization. After processing, the drive motor 14 reverses, and the two paths move synchronously in opposite directions, causing the drill bit to reset and the clamping to release. Compared with using multiple motors in conjunction with sensors and program control to achieve synchronization, this is simpler, more reliable, and lower in cost in structure, and avoids the delay, error, or failure risks that may exist in electronic control, ensuring the coordination of the clamping and tool setting processes in terms of time and rhythm.

[0026] like Figure 4 , Figure 6 and Figure 11As shown, in a preferred embodiment, based on the above method, the locking assembly further includes a first pneumatic telescopic rod 17 fixed to the top of the housing 5, an annular plate 171 disposed on the top of the first pneumatic telescopic rod 17, a plurality of mounting plates 172 evenly distributed on the annular plate 171, and a plurality of elastic telescopic inserts 173 disposed on the mounting plate 172. The moving plate 604 is provided with a plurality of insertion holes 18 that cooperate with the elastic telescopic inserts 173. The locking assembly also includes a second pneumatic telescopic rod 19 connected to the side wall of the electric telescopic rod 136. The telescopic end of the second pneumatic telescopic rod 19 is provided with a force-bearing plate 20 that moves against the outer wall of the pump housing. An air guide pipe 21 is provided between the second pneumatic telescopic rod 19 and the first pneumatic telescopic rod 17. Ball bearings may be provided on the force-bearing plate 20 to prevent wear between it and the pump housing when the drill moves down with the electric telescopic rod 136. Specifically, the second pneumatic telescopic rod 19 and the first pneumatic telescopic rod 17 have the same structure, both including a sleeve 191, a piston 192 slidably connected in the sleeve 191, an elastic element 193 disposed between the piston 192 and the inner wall of the sleeve 191, and a movable rod 194 connected to the side of the piston 192 away from the elastic element 193. The piston 192 divides the inside of the sleeve 191 into a rod chamber containing the movable rod 194 and a rodless chamber without the movable rod 194. The two ends of the air guide pipe 21 are respectively connected to the rodless chambers of the second pneumatic telescopic rod 19 and the first pneumatic telescopic rod 17. Hydraulic oil can also be filled between the rodless chambers of the two and the air guide pipe 21 to avoid the gas being compressed. The flow of hydraulic oil is the same as that of air. Specifically, in the non-operational or reset state, the first pneumatic telescopic rod 17 is in a retracted or non-extended state under the action of its own elastic element 193, and its elastic telescopic insertion rod 173 is separated from the insertion hole 18 at the bottom of the moving plate 604. At the same time, the second pneumatic telescopic rod 19 is in an extended state under the action of its elastic element 193, and the force plate 20 at its front end is located at a preset front end position. When the device starts to operate, the drilling adjustment assembly drives the electric telescopic rod 136 and the second pneumatic telescopic rod 19 on it to move radially closer to the pump housing. When the force plate 20 contacts the outer wall of the pump housing and is squeezed, the movable rod 194 of the second pneumatic telescopic rod 19 is pushed back, driving its piston 192. The air in the rodless chamber is compressed. Since the air guide pipe 21 connects the rodless chambers of the second pneumatic telescopic rod 19 and the first pneumatic telescopic rod 17, the compressed air is forced into the rodless chamber of the first pneumatic telescopic rod 17 through the air guide pipe 21. This air pressure pushes the piston 192 of the first pneumatic telescopic rod 17, overcoming the elastic force of its elastic element 193, causing the movable rod 194 to extend. The movable rod 194 of the first pneumatic telescopic rod 17 extends. A sensor should be installed on the force plate 20 of the second pneumatic telescopic rod 19. Its contact with and pressure on the outer wall of the pump housing allow the sensor to directly and accurately sense that the drill bit, carrying the cutting tool, has reached the upper surface of the workpiece to be processed on the pump housing when the second pneumatic telescopic rod 19 is compressed to its limit. In this state, the physical contact signal is immediately converted into a locking action through the pneumatic pipeline, and the background control drive motor 14 stops running. The first pneumatic telescopic rod 17 pushes the annular plate 171, mounting plate 172 and elastic telescopic rod 173 at its top to move upward. The upward-moving elastic telescopic rod 173 is inserted into the insertion hole 18 at the bottom of the now stationary moving plate 604. Since there are multiple insertion holes 18, even if they are not all aligned due to positional errors, the elastic design of the elastic telescopic rod 173 itself can ensure that at least some can be successfully inserted, thereby mechanically preventing the movement of the moving plate 604, that is, locking the position of the entire clamping mechanism. The uninserted elastic telescopic rod 173 automatically retracts. After processing, when the drilling adjustment assembly drives the electric telescopic rod 136 and the second pneumatic telescopic rod 19 to retract radially, the force plate 20 leaves the pump housing surface, and the pressure on the second pneumatic telescopic rod 19 disappears. At this time, the air pressure in the rodless chamber of the first pneumatic telescopic rod 17 decreases, and under the action of the rebound force of its own elastic element 193, the movable rod 194 retracts, driving the elastic telescopic insertion rod 173 to exit from the insertion hole 18, and the locking state is released. Compared with complex electronic control linkage, it has a simple structure, low cost, strong anti-interference ability, is not affected by electrical signals, and has almost no easily damaged electronic components. It is easy to maintain and is very suitable for long-term stable operation in the harsh working conditions of metal cutting with many oils, many chips, and many vibrations.

[0027] The present invention also discloses a method for using a fire pump housing processing device, comprising the following steps: S1: Place the pump casing body to be drilled above the protective shell 3, so that its casing wall is placed between the two clamping plates 605 connected by the first sleeve 601 and the second sleeve 602. S2: Control the electric telescopic rod 136 to descend, so that the second pneumatic telescopic rod 19 and its force plate 20 arranged horizontally on it descend to a position that is flush with or slightly lower than the outer wall of the pump casing body. Then, start the drive motor 14. S3: The drive motor 14 drives the rotating rod 15 to rotate through the synchronous pulley 16 and the synchronous belt. The active bevel gear 151 on the rotating rod 15 meshes with the driven bevel gear 607 on the multiple bidirectional screws 6, driving all the bidirectional screws 6 to rotate synchronously. Under the action of the external thread 606 with gradually decreasing pitch, the first sleeve 601 and the second sleeve 602 quickly approach each other along the axial direction of the bidirectional screws 6, and then push the moving plate 604 and the clamping plate 605 to move through the elastic telescopic tube 603. The wear-resistant rubber pads on the clamping plate 605 contact the inner wall and the outer wall of the pump housing body respectively to achieve initial clamping. At the same time, the output shaft of the drive motor 14 drives the gear ring 143 and the rotating ring 131 to rotate through the drive rod 141 and the drive gear 142. The rotating ring 131 drives the secondary bevel gears 134 at the ends of multiple adjusting screws 133 through the bevel gear ring 132 on it, so that all adjusting screws 133 rotate synchronously, thereby driving each third sleeve 135 to move radially, and driving the electric drill 2 on it to move closer to the preset drilling circumference position of the pump casing body. S4: When the clamping plate 605 is in close contact with the inner and outer walls of the pump housing, the moving speed of the clamping mechanism slows down due to the reduced thread pitch of the bidirectional screw 6, but the driving force continues, which compresses the elastic telescopic tube 603 and generates a stable adaptive clamping force. At the same time, the third sleeve 135 continues to drive the electric drilling rig 2 and the second pneumatic telescopic rod 19 to move radially. When the force plate 20 at the front end of the second pneumatic telescopic rod 19 comes into contact with the outer wall of the pump casing, the third sleeve 135 continues to advance and compress the second pneumatic telescopic rod 19. When the second pneumatic telescopic rod 19 is compressed to its limit, all the drill bits of the electric drill 2 are aligned with their respective target drilling circumference positions. The air in the rodless chamber of the second pneumatic telescopic rod 19 is forced into the air guide pipe 21 and enters the rodless chamber of the first pneumatic telescopic rod 17. The first pneumatic telescopic rod 17 extends under the action of air pressure, pushing the annular plate 171 and the mounting plate 172 to move upward, so that multiple elastic telescopic rods 173 on the mounting plate 172 are inserted into the corresponding insertion holes 18 at the bottom of the moving plate 604. Since the insertion holes 18 and the elastic telescopic rods 173 are arranged in multiple groups, at least one group can be successfully inserted, thereby mechanically locking the clamping mechanism during the drilling process to prevent it from loosening due to vibration. S5: After clamping and locking, control each electric telescopic rod 136 to descend independently, drive the electric drill 2 to complete the drilling operation. The waste chips generated during drilling fall into the outer movable groove 301 and the inner movable groove 302, and are received by the first receiving shell 7 and the second receiving shell 8. They slide along their inverted V-shaped inner walls into the first annular shell 9, the second annular shell 10, and the third annular shell 11, and are finally discharged outside the protective shell 3 through each guide channel 12 to prevent the waste chips from affecting the internal transmission components. S6: After drilling is completed, the electric drill 2 retracts, the drive motor 14 reverses, and each mechanism automatically resets under the drive of the transmission components. The elastic telescopic rod 173 disengages from the insertion hole 18 after the air pressure is released, and the processed pump casing body is removed.

[0028] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0029] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A fire pump casing processing device, comprising a cabinet (1) and a plurality of electric drilling rigs (2) disposed on the upper side of the cabinet (1), characterized in that, Also includes: The positioning clamping mechanism includes a protective shell (3) disposed on the upper side of the cabinet (1) and a positioning clamping component disposed inside the protective shell (3) for clamping the positioning pump housing body; The drilling adjustment mechanism includes a top plate (4) mounted on the upper side of the cabinet (1) via a support rod and a drilling adjustment assembly mounted on the lower side of the top plate (4) for adjusting the drilling spacing of several electric drills (2). The drive mechanism includes a housing (5) disposed on the top of the cabinet (1) and a drive assembly disposed inside the housing (5) for driving the positioning clamping assembly and the drilling adjustment assembly to work synchronously. The outer shell (5) is provided with a locking component for locking the position of the positioning clamping component, and the protective shell (3) is provided with a closed waste chip guiding system that cooperates with the positioning clamping component, which is used to dynamically receive the waste chips generated by the electric drill (2) during drilling during the operation of the positioning clamping component. The positioning and clamping assembly includes several bidirectional screws (6) arranged in a circular and uniformly rotating manner within the protective shell (3). Each bidirectional screw (6) is threadedly connected to a first sleeve (601) and a second sleeve (602). Both the first sleeve (601) and the second sleeve (602) are provided with elastic telescopic tubes (603). Each end of the elastic telescopic tube (603) is provided with a movable plate (604). The top of the movable plate (604) is provided with a clamping plate (605). The clamping plate (605) is provided with a wear-resistant rubber pad. The protective shell (3) is provided with an outer movable groove (301) and an inner movable groove (302) that cooperate with the clamping plate (605); Each of the bidirectional screws (6) is provided with an external thread (606) that is threadedly connected to the first sleeve (601) and the second sleeve (602). The pitch of each external thread (606) gradually decreases, and the first sleeve (601) and the second sleeve (602) on the same bidirectional screw (6) move relative to each other. The closed waste diversion system includes a first receiving shell (7) and a second receiving shell (8). The first receiving shell (7) is connected to the moving plate (604) corresponding to the first sleeve (601) and is used to close the outer movable groove (301). The second receiving shell (8) is connected to the moving plate (604) corresponding to the second sleeve (602) and is used to close the inner movable groove (302). The inner walls of the first receiving shell (7) and the second receiving shell (8) are configured as an inverted V-shaped cavity with a high middle and low sides. The first receiving shell (7) is slidably connected to the second receiving shell (8). The inner wall height of the second receiving shell (8) is lower than the inner wall height of the first receiving shell (7). The first receiving shell (7) has a first discharge port (701) at one end inside the second receiving shell (8).

2. The fire pump casing processing device according to claim 1, characterized in that, The inner wall of the protective shell (3) is fixedly provided with a first annular shell (9), a second annular shell (10) and a third annular shell (11). The inner walls of the first annular shell (9), the second annular shell (10) and the third annular shell (11) are all inclined, and the first annular shell (9), the second annular shell (10) and the third annular shell (11) are all provided with a material guiding channel (12) that communicates with the outside of the protective shell (3). The first receiving shell (7) is slidably connected to the first annular shell (9) at one end away from the first discharge port (701), and the first receiving shell (7) has a second discharge port (702) at one end inside the first annular shell (9). The first receiving shell (7) and the second receiving shell (8) are both slidably connected to the second annular shell (10). The second receiving shell (8) has a third discharge port (801) at one end inside the second annular shell (10). The second receiving shell (8) is slidably connected to the third annular shell (11) at one end away from the third discharge port (801), and the second receiving shell (8) has a fourth discharge port (802) at one end inside the third annular shell (11).

3. The fire pump casing processing device according to claim 2, characterized in that, The drilling adjustment assembly includes a dust cover (13) fixed on the top plate (4), a rotating ring (131) placed inside the dust cover (13) and rotatably connected to the top plate (4), a bevel ring (132) fixedly connected to the rotating ring (131), a plurality of adjusting screws (133) rotatably connected to the dust cover (13), a secondary bevel gear (134) set on the adjusting screws (133) and meshing with the bevel ring (132), a third sleeve (135) threadedly connected to the adjusting screws (133), and an electric telescopic rod (136) set on the third sleeve (135). The electric drill (2) is connected to the end of the electric telescopic rod (136) away from the third sleeve (135).

4. The fire pump casing processing device according to claim 3, characterized in that, The drive assembly includes a drive motor (14) rotatably disposed within the housing (5), a drive rod (141) connected to the output shaft of the drive motor (14), a drive gear (142) disposed on the drive rod (141), and a gear ring (143) disposed on the rotating ring (131) and meshing with the drive gear (142).

5. A fire pump casing processing device according to claim 4, characterized in that, The drive assembly also includes a rotating rod (15) rotatably mounted on the housing (5), a driving bevel gear (151) is mounted on the rotating rod (15), a driven bevel gear (607) meshing with the driving bevel gear (151) is mounted on the bidirectional screw (6), a synchronous pulley (16) is mounted on both the rotating rod (15) and the drive rod (141), and a synchronous belt is mounted between the two synchronous pulleys (16).

6. The fire pump casing processing device according to claim 5, characterized in that, The locking assembly includes a first pneumatic telescopic rod (17) fixed on the top of the outer shell (5), an annular plate (171) set on the top of the first pneumatic telescopic rod (17), a plurality of mounting plates (172) evenly distributed on the annular plate (171) in a circular pattern, and a plurality of elastic telescopic inserts (173) set on the mounting plates (172). The movable plate (604) is provided with a plurality of insertion holes (18) that cooperate with the elastic telescopic inserts (173).

7. A fire pump casing processing device according to claim 6, characterized in that, The locking assembly also includes a second pneumatic telescopic rod (19) connected to the side wall of the electric telescopic rod (136). The telescopic end of the second pneumatic telescopic rod (19) is provided with a force-bearing plate (20) that moves against the outer wall of the pump housing body. An air guide pipe (21) is provided between the second pneumatic telescopic rod (19) and the first pneumatic telescopic rod (17).

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